509 COLLEGE ST
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Location
509 COLLEGE ST
Mblu
243/ 0310/ 00100/ /
Acct#
243 0310 00100
Owner
YALE UNIVERSITY
Total Market Value
$51,023,070
Appraisal
$72,890,100
PID
13862
Building Count
1
Current Value
Appraisal
Valuation YearImprovementsLandTotal
2025$68,635,600$4,254,500$72,890,100
Assessment
Valuation YearImprovementsLandTotal
2025$48,044,920$2,978,150$51,023,070

Owner of Record
OwnerYALE UNIVERSITY
Co-Owner
AddressYALE UNIVERSITY CONTROLLER FRA
PO BOX 208372
NEW HAVEN, CT 06520-8372
Sale Price$0
Certificate
Book & Page 0/0
Sale Date
Instrument

Ownership History
Ownership History
OwnerSale PriceCertificateBook & PageInstrumentSale Date
YALE UNIVERSITY $0 0/0  

Building Information
Building 1 : Section 1
Year Built: 1940
Living Area: 180,310
Replacement Cost: $93,080,914
Building Percent Good: 73
Replacement Cost
Less Depreciation:
$67,949,100
Building Attributes
FieldDescription
Style:Dormitory
ModelCommercial
GradeAve/Good
Stories:4
Occupancy1.00
Exterior Wall 1Stone
Exterior Wall 2Brick
Roof StructureGable/Hip
Roof CoverSlate
Interior Wall 1Plastered/Dryw
Interior Wall 2 
Interior Floor 1Fin WD/Carpet
Interior Floor 2 
Heating FuelGas/Oil
Heating TypeHot Water
AC TypeNone
Bldg UsePVT UNIV MDL-94
Total Rooms 
Total Bedrms00
Total Baths0
NBHD Code 
1st Floor Use:904C
Heat/ACNONE
Frame TypeMASONRY
Baths/PlumbingAVERAGE
Ceiling/WallCEIL & WALLS
Rooms/PrtnsAVERAGE
Wall Height12.00
% Comn Wall 
Building Photo Building Photo
Building Layout Building Layout
Building Sub-Areas (sq ft)
CodeDescriptionGross
Area		Living
Area
FUSFinished Upper Story 115,716 109,930
BASFirst Floor 40,604 40,604
FBMFinished Basement 49,626 29,776
UUSUnfin Upper Story 743 0
   206,689 180,310

Extra Features
Extra Features
CodeDescriptionSizeValueAssessed ValueBldg #
SPR1SPRINKLERS-WET206689.00 S.F.$392,300$274,6101
ELV2PASS ELEV4.00 STOPS$90,500$63,3501
ELV2PASS ELEV4.00 STOPS$90,500$63,3501
ELV2PASS ELEV5.00 STOPS$113,200$79,2401

Land
Land Use
Use Code904C
DescriptionPVT UNIV MDL-94  
ZoneRH2
NeighborhoodDT
Alt Land ApprNo
Category
Land Line Valuation
Size (Acres)2.7
Frontage0
Depth0
Total Market Land$2,978,150
Appraised Value$4,254,500

Outbuildings
Outbuildings

No Data for Outbuildings

Valuation History
Appraisal
Valuation YearImprovementsLandTotal
2025$68,635,600$4,254,500$72,890,100
2024$68,635,600$4,254,500$72,890,100
2023$68,635,600$4,254,500$72,890,100

Assessment
Valuation YearImprovementsLandTotal
2025$48,044,920$2,978,150$51,023,070
2024$48,044,920$2,978,150$51,023,070
2023$48,044,920$2,978,150$51,023,070

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